2007 Infiniti G Infiniti G 2007

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2007 Infiniti G repairs by problem area

Engine (22%)

Transmission and Drivetrain (8%)

Brakes and Traction Control (5%)

Suspension and Steering (11%)

Electrical and Air Conditioning (25%)

Paint, Rust, Leaks, Rattles, and Trim (21%)

Other (8%)

Chart based on 363 repairs.
See TSBs and recalls for the 2007 Infiniti G.

2007 Infiniti G engine repair cost distribution

$2500+ (1%)

$1000 - $2499 (5%)

$500 - $999 (12%)

$100 - $499 (22%)

< $100 (60%)

Worried about potential repair costs? An extended warranty can provide peace of mind.

Chart based on 77 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.

2007 Infiniti G

Engine not specified

8000 mi

US $50
Cruise control surge, throttle tip-in. 
73000 mi

US $1500
gaskets inside timing case were blown. 

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2007 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 6-speed manual RWD

87300 mi

US $200
Throttle bodies lost calibration, had to be reset 
159100 mi

US $60
The idler pulley broke down. I had to order this part (no part stores carried it) and I replaced it along with the drive belt. 
93200 mi

US $300
Air fuel ratio sensor needed to be replaced. 
207000 mi

US $1000
Exhaust y-pipe replaced 
28000 mi Cruise control surge, hesitation on sharp acceleration from cruising with foot on gas. ECU re-flashed, self learning on mixture, throttle reset. 
42900 mi

US $250
Drive belt broke damaging AC compressor. Belt passed inspection one month prior. It should not have. Disappointed that dealer didn't spot worn belt. Could have prevented car breaking down in traffic and requiring tow. 
52000 mi

US $350
Serpentine belt snapped again. Brought back to repair shop that did original repair in June. Found Tensioner misaligned with serpentine belt. I paid for part but shop covered labor and cost of additional belt. 
91000 mi

US $350
Hoses leaking needed replacement. 
110000 mi

US $75
Coolant hoses leaking. Replaced. 
66000 mi

US $1158
Had to replace Catalytic converter. 

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2007 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 5-speed shiftable automatic RWD

132000 mi

US $900
Removed and replaced two valve timing gears and belt 
53000 mi The car was hesitating when leaving a stopped position. 
66000 mi

US $235
I had a ticking sound that started at 1800RPMs and got faster and louder, with RPMs, up to 4000RPMs. Dealer correctly diagnosed as... 
16000 mi Fixed surging issue in cruise control; replaced radar sensor and reflashed ECU. 
24000 mi Acceleration surge from stop, reprogrammed ECU to fix. 
83000 mi

US $410
Rough idle, throttle hesitation. Fixed by cleaning throttle body/plate, fuel injectors, and reflashing ECM 
114000 mi

US $665
Replace wiring harness for fuel injectors due to rodent damage under engine 
99000 mi

US $800
cleaned throttle body 
40000 mi the rear seal was replaced 
40200 mi Complete replacement of VTC pulley system due to SES. Complete replacement of VTC pulley system due to SES 
76880 mi Fixed broken exhaust clamps on the heat shield @ 6 places. Noted bad corrosion along the exhaust system. No need for replacement yet. 
167000 mi

US $980
Water pump failure. 163k miles 
168000 mi

US $3780
Main bearing total failure. Engine replaced with used part 
69000 mi

US $385
oil pan leak 
71000 mi

US $40
Replaced deep belt. 
90000 mi

US $345
Replaced tranny mount 
105000 mi

US $300
Heater hose started leaking,  
108600 mi

US $15
Car has had persistent coolant smell after driving. Noticed upper radiator hose clamp had coolant residue. Replaced upper hose and clamps. Car still has coolant smell, but does not lose coolant or overheat. 
109900 mi

US $3
Has very common head gasket coolant weeping. Possibly fixed with Subaru Coolant Conditioner. 
58000 mi The manual shift mode would intermittently not up-shift. Transmission worked in all other modes. Originally, dealer could not replicate problem. On subsequent visit, problem was noted by technician and the shifting unit replaced. 
34000 mi Valve in the fuel tank was replaced. 
14000 mi Hose leaking at connection to radiator. 
85000 mi

US $699
Coolant leak repaired. Replaced coolant pipe o'rings, expansion tank & attached hoses, flushed & refilled system. 
58300 mi

US $450
Check engine light led to error code P0455, confirmed with smoke test. Evap canister replaced.  Also replaced leaking coolant hose. 
16000 mi Hard shift from 2nd to 3rd gear in manual mode. 
12000 mi TSB for Silicone in Heater core causing ticking noise inside the dash They had to redo the silicone because they missed some. 
51000 mi check Engine light, engine sensors failed. Car died and needed to be towed and resulted in dead battery. 
7000 mi Cruise Control Surge Repair 

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2007 Infiniti G 4dr Sedan

306-horsepower 3.5L V6 5-speed shiftable automatic AWD

127000 mi

US $519
Repaired a hole in the exhaust system due to corrosion. The front Y-pipe and flex pipes after the catalytic converters were replaced. 
9000 mi TSB ITB07-045, 2007 G35 SEDAN; COLD ENGINE START ISSUES • Rough idle during the first minute of engine operation after cold engine start. And/or • Slight engine speed fluctuation during light throttle acceleration during the first ten minutes of d 
64000 mi

US $55
After doing some research I discovered that I wasn't crazy in thinking that the throttle was way too sensitive in low speed situations. Turns out there was a service bulletin on this and a software fix for the electronic throttle. 
96300 mi

US $125
Leaking radiator hose 
22320 mi Gearshift not going into DS / stuck in DS. 
50000 mi Strange hesitation and shifting problems around 3k rpms. Transmission mechanically perfect and no shavings. Mechanic replaced TCU (with the valve control box) on advice from Infiniti and issue is gone. 
97000 mi Throttle body refleash for hesitation and juddering at speed. 
98000 mi

US $1144
Radiator burst. 
72500 mi

US $35
Oil change and rough idling 
121380 mi

C $850
Bank 2 Throttle Body failure. Car would not start, could smell gas. Computer code directed shop owner to the problem quickly. Purchased used Throttle Body for $200 versus $800 for new from dealer. 
200260 mi Both variable valve timing solenoids had to be replaced so the car could pass an emissions test for resale. Rad hose clamps rotted and hose blew off spilling almost all coolant. Driven a ways in this condition, head gasket blown, possibly more damage. A write off. 
69400 mi

US $150
Main radiator hose was split and needed to be replaced, but coolant flush was also conducted at same time as repair since system was open 
1860 mi Throttle sensitivity TSB 
37820 mi

C $22
Mechanical key could not be removed from port. Mechanic successfully removed key without damage to either key or port. 
19000 mi Extremely sensitive throttle. You could push on the pedal and it would just take off all of a sudden. Found a TSB for the issue and gave it to the dealer. They performed the TSB and it works fine. 
72000 mi TPMS Sensor flashed then solid yellow. Was told the TPMS sensors were OK but needed to be reprogrammed. Dealer reprogrammed all 4 sensors and stated it was not covered by the extended warranty.  Outside shop replaced coolant as a part of preventive maintenance, but they damaged one of the hoses causing the coolant to leak out on the road and engine to overheat. Car towed to dealer, who reattached the hose and re-filled coolant 
63000 mi Car was hesitating and running rough on cold start-up. ECU was re-flashed with latest software 
35000 mi Replaced left side catalytic convertor. 
113460 mi

C $649
Exhaust 
22000 mi Gear select unit malfunctioning (electronic failure) (but went in gear). 
23000 mi Gear select unit malfunctioning - short in shift indicator switch (but went in gear). Previous repair thought to be successful, but turned out to be temperature related, and reappeared. Won't know if this was successful until winter. 
88000 mi

US $150
Rattle, caused by loose heat shield. Tightened at no cost. 
91000 mi

US $550
Leaky radiator hose. Both hoses replaced, flushed radiator and fill. 
39000 mi Camshaft position sensor replaced 
44000 mi SES light indicated occasional timing issues. Cam sprocket had excessive unusual wear. Replaced. This problem is intermittent and the SES light can take a while to detect the issue and come on again. 

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2007 Infiniti G 4-door

6-cylinder manual 2WD

18000 mi Alternator Bearing was bad 

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2007 Infiniti G 4-door

6-cylinder automatic AWD

9000 mi Tapping noise from dash area when accelerating above 2500 rpm. 

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2007 Infiniti G 4-door

4-cylinder automatic AWD

12000 mi Slight hesitation with engine and/or transmission at low RPMs. Mechanics could not recreate problem. 

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2007 Infiniti G 2dr Coupe

293-horsepower 3.5L V6 6-speed manual RWD

12000 mi Clattering noise from engine when shifting gears and using brake or gas pedals. Dealer determined it as known problem with this type of car (G35 coupe stick shift) where engine goes through oil too quickly, and that engine would need replacement. Engine was successfully replaced and has been fine since. 
16620 mi Engine is undergoing an oil consumption test. Apparently Rev-Up engines are prone to oil loss. 
19420 mi Engine was using excessive amounts of oil. Engine was replaced. 

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2007 Infiniti G 2dr Coupe

275-horsepower 3.5L V6 5-speed shiftable automatic RWD

70000 mi

US $110
replaced oil cooler o ring 
29000 mi

US $150
AC Belt replaced 
51700 mi Thermostat sticking and was replaced. Also removed an air pocket in the coolant system. 
52500 mi

US $50
Car overheated... replaced thermostat and all is good. 

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2007 Infiniti G Engine Problems

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